baber/WOPTO huggingface dataset:
Patent DE-4042147-A1 (DE)
Title: Highly structured finely divided silica prepn. - useful e.g. as filler and barrier in rubber, paint, paper pesticide and pharmaceutical industries
Inventor: COTTA FRITZ DR RER NAT
IPC: C01B33/193
Filed: 1990-12-28
Abstract: Prepn. of highly structured, finely divided silica comprises reaction of alkali silicate solns. with acids or acid type materials with mixing by stirring or action of high shear strengths. Prior to reaching an electrolyte concn. of 0.3N trialkyklbenzyl (or H)-ammonium (as cationic surfactant) is added in a concn. such that coagulation takes place below the critical micelle-forming concn. of the surfactant. Pref. the ratio of surfactant to SiO2 in the sol-phase is 1:80-100 and 1:400-500 in the entire process. USE/ADVANTAGE - Finely divided silica is used as a filler for the rubber industry, an extender-filler for dispersion paints and paper coatings as a mobile solvent, as an antiblocking agent or a carrier for pesticides, pharmaceuticals or cosmetic ag
Patent DE-4042268-A1 (DE)
Inventor: HOERMANSDOERFER GERD
IPC: C09K5/06
Filed: 1990-12-31
Abstract: The invention relates to latent heat storage agents for storing thermal energy. The proposal is for the use of mixtures of various perchlorates or perchlorates-hydrates with other organic substances or inorganic salts or hydrate salts. As is known, pure lithium perchlorate trihydrate melts at a temperature of 94.3  DEG C and, with a value of 306 J/g, has a markedly high melting enthalpy. Its density of 1.89 also gives the very high volume-specific figure of 578 J/cm<3>. Because, however, its melting point is close to the boiling point of water it is not of practicable use in upressurised systems in which water is the heat conveyor. However, the various mixtures proposed by the invention have lower melting points in a broad temperature range, also with very considerable melting enthalpies which are almost the same or not very much lower than that of the pure initial substances.
Patent DE-4105842-A1 (DE)
Title: Locating joint sleeve in buried ferromagnetic pipeline -  magnetising pipeline and externally measuring field anomalies caused by non-magnetic sealing material
Inventor: NOSKE GERHARD DR
IPC: G01V3/08
Filed: 1991-02-25
Abstract: A magnetic field is generated in the pipe by an excitation coil (3) introduced, e.g. down a manhole. A stepped change in the magnetic flux (2) arises in the region of the joint sleeve (6). THe resultant field anomalies arise from high magnetic dispersion loss (7). The latter are measrued and evaluated so that the position of the joint can be accurately located. A higher magnetic reluctance occurs at the joint sleeve on account of the sealing material used, usually packed hemp and lead with a circular contact region between the pipes remaining. A voltage quatient measurer can be used to measure the quatient of the horizontal components of the magnetic induction from two measuring coils at two positions directly. ADVANTAGE - Rapid results at low equipment expenditure.
Patent DE-4108168-A1 (DE)
Title: Stock inlet diffusor tube - allows a free edge zone between outer tube and edge wall
Inventor: HEINZMANN HELMUT
IPC: D21F1/02
Filed: 1991-03-14
Abstract: The diffusor tube at the stock inlet for a papermaking machine extends only over part of the machine width to give a free edge zone between the outer diffusor tube and the adjacent edge wall. The height of the separate slides, to reduce the diffusor width, is less than the clear width between the two wide walls. The slides are positioned so that they project into the free edge zone and both their sides are covered by the suspension. ADVANTAGE - The pattern of the suspension flow can be varied at the edge zones, with a slide system which requires no maintenance over long time periods. The suspension is not allowed to build up
Patent DE-4109158-A1 (DE)
Title: Sandwich constructions prodn. - by coating surfaces of e.g. two mould tools with suitable liq. resin, introducing foaming resin between them, closing mould and curing resins
Inventor: HEINZ WILLI
IPC: B29C37/00
Filed: 1991-03-20
Abstract: Flat or other articles are produced with a core and outer covering, in which the core material is one of high thermal insulation, and a two-part (at least) moulding device is used whose parts open and close, and when closed, surround the article. In the process a liq. is applied to the adjacent faces of the two parts when the device is open; the core material is inserted between them to fill the intermediate space; the moulding device is then closed so that the core is completely covered, and the covered prod. is finally removed. The core is pref. polyester, phenolic, epoxide or polyurethane foam and the covering is pref. a resin from the same range of types. ADVANTAGE - The method of prodn. is simple (partic. in comparison with existing methods)
Patent DE-4122094-A1 (DE)
Title: 1,1,3,3,-Bis-polymethylene-2-(hetero)aryl-uronium salts - are condensn. agents with improved solubility properties, esp. for use in automated peptide syntheses
Inventor: HENKLEIN PETER DR
IPC: C07K7/08
Filed: 1991-07-01
Abstract: Uronium salts (I) are new, where X=N-oxido-pyrid-2-one or pentafluorophenoxy; Y=an anion; Z=-(CH2)n- or -(CH2)2-O-(CH2)2-; n=4-6. Y(-) is pref. Cl-, BF4(-) or PF6(-). USE/ADVANTAGE - Cpds. (I) are condensn. agents for the prodn. of peptides, beta-lactams, amides and esters. They are esp. suitable for use in automated peptide syntheses. Compared with known condensn. agents such as BOP and TBTU, cpds. (I) have improved solubility properties, e.g. 1.5 mol/l in DMF or dichloromethane, and are readily accessible from non-carcinogenic starting materials. Further, in use they give high prod. yield with low byprod. formation.
Patent DE-4127706-A1 (DE)
Title: Reducing commutating noise in power MOSFET based circuit - using three half bridge circuits each having two pairs of MOSFET devices in parallel, and coupled by diodes, for three=phase inverter function
Inventor: HAUW-DOEBLITZ HANTJUN DIPL ING
IPC: H02M7/538
Filed: 1991-08-20
Abstract: The method involves using a 3 phase pulse inverter circuit which has an intermediate rectified voltage (UD) input. The inverter unit is formed by 3 half bridges (A,B,C) and is used to supply an inductive load (6), e.g. motor or transformer. Each half bridge circuit is formed from pairs of MOSFET transistors (1,2,1',2') that have each pair formed as series arrangements that are in parallel with each other. Each half bridge circuit is coupled via diodes (3,4). Phase outputs (RST) are taken from the centre points. ADVANTAGE - Avoids commutation losses in pulsed MOSFET inverter circuitry.
Patent DE-4128403-A1 (DE)
Title: Electropneumatic control arrangement for magnetic rail brake - incorporates air-operated valve for preliminary control of pilot disc valve monitored by speed-dependent pressure signal
Inventor: HILLE WOLFRAM
IPC: B61H7/08
Filed: 1991-08-23
Abstract: An actuating piston (28) slides in a housing (30) between an upper space (24) connected to the main air line (1), and a lower space (25) communicating with a pressure chamber (26) via a direct connection (32) and a radial bore (31) within the stroke of a K-groove around the rim of the piston (28). The tubular shaft (35) of the piston (28) is penetrated by the plunger (20) of another piston (18) closing a current switch (21) in the power supply line to the braking electromagnet (22), which is raised when pneumatic cylinders (23) are vented. ADVANTAGE - Almost instantaneous disconnection of brake achievable.
Patent DE-4130556-A1 (DE)
Title: Total reflection X=ray fluorescence analysis appts. - has radiation source monochromator, scattered beam aperture and detector having thin diamond measuring window, all in vacuum housing
Inventor: HUBER ANTON DIPL PHYS
IPC: G01N23/223
Filed: 1991-09-13
Abstract: Appts. for total reflection x-ray fluorescence analysis, by x-ray excitation of the smooth flat surface of a specimen or a thin film on a specimen and then spectral detection of the emitted x-ray fluorescence, includes a radiation source, a monochromator, a scattered beam aperture and a detector which are all located in a vacuum housing. Detector has a thin diamond measuring window of less than 1 micron thickness. Pref. radiation source is pref. a low energy x-ray tube which can be pivoted and adjusted on a holder in the vacuum housing. pref. the components and a specimen table can be adjusted by stepping motors which are controlled by a programmable microprocessor. Detector is pref. a Ge detector. USE/ADVANTAGE - For determining contaminants e.g. of Si wafers. allows high precision detection esp. of relatively light element shaving relatively low fluorescent radiation hardness, e.g. Al, Na, and F
Patent DE-4133645-A1 (DE)
Inventor: HOHNERLEIN ERNST
IPC: B23K3/00
Filed: 1991-10-11
Abstract: The invention relates to a method for soldering, repairing or desoldering, especially of electrical and/or electronic components on a printed-circuit board, with the aid of a soldering iron (1) which can be heated electrically. The essence of the invention is that barrier gas (28) is used simultaneously during soldering with the soldering iron (1 to 1e). <IMAGE>
Patent DE-4133982-A1 (DE)
Title: Closure piece for folding box with flaps -  has folding flaps, with holes for handle, and tear lines with perforations
Inventor: ROTTENSTEINER MANFRED
IPC: B65D5/54
Filed: 1991-10-14
Abstract: The closure piece for a folding box with flaps sticking up from the box-sides (2-5) has at least two of the flaps in the form of folding ones (8,9) which overlap and are attached to opposite sides. The folding flaps (8.9) have holes in (10) for a handle (11) to go through. Closure flaps (14,15) go over the folding flaps (8,9) and are joined, especially stuck, to the topmost folding flap (8) at a connecting part away from the bending line and are not joined to the folding flap (8) in a part (20) along the bending line. The two parts (20) are separated by a tear off part (16) formed by two parallel perforation lines. USE/ADVANTAGE - The folding box is very strong and can be stacked, easily opened and reclosed.
Patent DE-4137947-A1 (DE)
Inventor: BEGE DIETMAR
IPC: G21F9/14
Filed: 1991-11-18
Abstract: Radioactive waste occurs for example in the form of contaminated powdery ion exchange resin whose volume must be reduced as much as possible for final storage. A process is disclosed therefor which includes mechanically dewatering the ion exchange resin, mixing the dewatered ion exchange resin with a calcium compound, drying it by addition of heat, then finally thermally treating the dry mixture by heating it up to a temperature in a range from 120 to 190  DEG C under a pressure below 1000 hPa. The ion exchange resin thus loses its water absorption and swelling capacities. Ion exchange resins treated in this manner are shaped with concrete or bitumen into blocks for final storage.
Patent DE-4140431-A1 (DE)
Title: Displacement machine working on spiral principles - has displacer on drive shaft eccentric union describing eccentric path
Inventor: EMMENTHAL KLAUS-DIETER DR ING
IPC: F04C18/02
Filed: 1991-12-07
Abstract: The machine consists of a housing in which circulates eccentrically a displacer which delivers a work medium. Engaging at least at one point of the displacer is a driver device formed as a prim. eccentric unit, and at a further point a guide device formed as a sec. eccentric unit engages by means of an intermediate component. The intermediate component or compensation lever (21) extends otwards from the guide device or eccentric pin (20) via the second point (23) to the displacer (12), or from the displacer over the guide device (20), forming a compensation mass (26). USE - As a displacement machine delivering a work medium.
Patent DE-4204209-A1 (DE)
Title: Shower plumbing for recycling water - with two=way valve closing waste pipe and pump lifting used water back to shower tap
Inventor: SCHADE GEB JENSCHKE
IPC: E03C1/00
Filed: 1992-02-13
Abstract: The waste outlet (2) of the shower tray (1) has a controllable valve (5). When open this valve allows water to enter the waste pipe (6). When the waste valve (5) is closed, and a pump (4) is operating, the used water is lifted through a rising pipe (9) to the shower mixer tap (11) for recycling to the shower head (12). There are separate rising pipes for hot (7) and cold (8) fresh water. USE/ADVANTAGE - Shower plumbing with recirculating pipe saves water and energy used to heat water.
Patent DE-4205721-A1 (DE)
Title: Conductor shrouding - uses a deposited plastics to give a semi=finished circuit ribbon or circuit board
Inventor: ZIMMERMANN JOHANN DIPL ING
IPC: H05K3/46
Filed: 1992-02-25
Abstract: The shrouding for a conductive fabrics and the preparation of conductors for electrical and optical cables, and circuit boards, pref. of a glass fibre woven with cross linked high pressure polyethylene, has a plastics covering round the warps and links and the conductor filaments and also bonds the glass fibres to the circuit board or conductor ribbon. The plastics coating allows the twisted links to move at their twists. As the filaments and conductors are coiled round the core, they are displaced between coils for the plastics to be oriented between them to give coils at variable gaps. The plastics is deposited in a chamber, according to the temp. pressure and rotary speed of the rollers of the appts., through vapour deposition with a gas high pressure polyethylene and sputtering of high pressure polyethylene powder. The frequency of the alternating field in the chamber and the nominal value for the dielectric resistance of the ribbon and conductors are also taken into account. The deposited material, also containing a chemical accelerator, can also be a natural or modified natural material which can give the shrouding coating. USE/ADVANTAGE - The method is for the development of conductive woven ribbons and circuit boards, giving semi-finished components with plastics shrouding and insulation
Patent DE-4208724-A1 (DE)
Inventor: LOHMUELLER BERND DIPL ING
IPC: B21C47/14
Filed: 1992-03-18
Abstract: A process and device are disclosed for positioning the wire (6) while the drum packs of the drum pack device are exchanged. Storage fingers (11-14) are provided for retaining the wire windings around a winding core (2) while the drum packs are exchanged. In order to prevent the connection (62) between these windings and the filled drum pack to obstruct the fall of the collected windings into the empty drum pack (4), a wire positioning device brings the hanging wire (6) into a position located below the storage finger (11-14) most favourably positioned for the drum pack exchange. The wire (6) is held in this position until the new drum pack (4) is in the winding position. The wire positioning device is then brought back to its initial position and the wire can fall without impediments into the empty drum pack (4).
Patent DE-4209168-A1 (DE)
Title: Processing operating parameters of automated industrial systems - has stored model of system with parameters set for specific application using a number of interactive modules
Inventor: NEUMANN ANDREAS DIPL ING
IPC: H02J13/00
Filed: 1992-03-20
Abstract: The processing method involves setting the parameters that relate to a specific application. The system (1) has a base operation program (3) that connects with program modules (7). Each module relates to a specific system function group. Access to the program modules is provided by different levels by a hierarchial system (A,B,C). One level (A) has modules containing a facility for selecting operation data used to adjust the stored model of the system. A second level (B) provides access information and the third acts as a generator for operational data. USE/ADVANTAGE - Simplifies setting of application parameters.
Patent DE-4210004-A1 (DE)
Inventor: PAJENKAMP JOACHIM
IPC: B22C9/04
Filed: 1992-03-27
Abstract: In order to prevent the embrittlement of the outer surfaces of titanium dental castings caused by alpha case formation, the invention proposes a process and a ceramic mould in which the surfaces of the mould, including those of the casting hopper and casting channels which come into contact with the molten titanium are coated with a gas-permeable ceramic shell inert with respect to the molten titanium which is embedded in a gas-permeable, ceramic or ceramisable supporting compound of such a composition that the ceramic shell embedded n the supporting compound is under compressive stress during it sintering process and the casting operation.
Patent DE-4210524-A1 (DE)
Title: Swivelable indicator arranged on front side of measuring unit e.g. chart recorder - has rotary joint for fixing to recorder so that it can be swivelled from its basic position covering part region of front surface, to open position for access to paper
Inventor: FEUERLEIN FRIEDRICH
IPC: G01D11/02
Filed: 1992-03-31
Abstract: The electrical connection of the indicator is provided via a ribbon (7) which runs in the region of the rotary joint (1-6). The joint has at least one pivot pin (1), which lies before the front side outer edge of the first side wall (14) of the recorder chassis. The ribbon cable (7) is led along the first side wall connected with the rotary joint, running outside across the joint to a reception slit (9d) in the display housing (9) of the indicator. A stowage space is provided, in which the excess length of the ribbon cable (7) resulting from the swivelling in open position can be stowed. ADVANTAGE - Kinking of electric ribbon cable due to swivelling is prevented.
Patent DE-4216756-A1 (DE)
Inventor: GEISSLINGER GERD DR DR
IPC: A61K47/02
Filed: 1992-05-21
Abstract: A process is disclosed for preparing a composition of 2-arylpropionic acid derivates which can be more easily shaped into tablets and which contains known additives or excipients. The arylpropionic acid is mixed with a calcium compound and is pressed into tablets after the remaining additives and/or excipients have been admixed. Also disclosed are thus prepared pharmaceutical compositions.
Patent DE-4219378-A1 (DE)
Title: Spatial high resolution detection appts. for biomedical surface potential distribution e.g. ECG,EEG and EMG - activates metal coated foil electrode by application of point energy beam.
Inventor: BRUEHN ALFRED
IPC: A61B5/308
Filed: 1992-06-13
Abstract: The foil electrode (44) is applied to the measurement surface in an electrically conducting manner. The detected measurement parameters are fed to an electronic evaluation circuit via an electric cable. The evaluation circuit has a preamplifier and a main amplifier. High resolution detection is achieved using the equivalent of electrodes in a metal coated foil stimulated by the point application of energy. The merit figure of the foil and/or the pyroelectric coefficient of its material can be varied by the energy beam (8). USE/ADVANTAGE - For use in many biomedical measurement techniques. Complex electrode arrangement is replaced by simple foil.
Patent DE-4219716-A1 (DE)
Inventor: HABERMEHL LOTHAR
IPC: B08B15/00
Filed: 1992-06-17
Abstract: The invention relates to a method of removing scrap material, for example chips, from machining, in particular shaping workpieces by machining, by means of an air stream which is linked by means of flow paths (14, 16, 18) to at least one generating point (12), at which the scrap material produced there is taken up by the air stream and is entrained, if appropriate, with accompanying substances, such as lubricating, cutting or cooling fluid, and conveyed to a collecting point (20), at which the scrap material is separated from the accompanying substances and the conveying air and is stored until a predetermined storage volume has been reached, the conveying air initially being cleaned and subsequently discharged to the atmosphere. <IMAGE>
Patent DE-4225250-A1 (DE)
Title: Vacuum furnace for excess pressure dissipation used in steel hardening - has sepd. housings for back cooler and turbine for accelerating cooling gas and further housing contg. heating chamber
Inventor: HOFFMANN RUEDIGER
IPC: C21D1/773
Filed: 1992-07-31
Abstract: The vacuum furnace is for excess pressure dissipator with sepd. housings for the back cooler for back-cooling gas and the turbine for acceleration of the cooling gas on the one hand and on the other hand contains a housing which contains the heating chamber (A) with the material to be processed, which via four tube connections for the alternating cooling gas flow are joined to one another. In each two of the four tubes is a thermically insulated, vacuum-tight, and excess pressure-resistant valve, and in each of the four tubes a slide (D1, D3) is contained for control of the cooling gas flow. With the same back cooling chamber (B) more than one heating chamber is connected in the same way. The back cooling chamber is also used as a cooling gas buffer container. USE/ADVANTAGE - A vacuum furnace for excess pressure dissipator used in steel hardening to avoid the problem with known systems where the high the ruling excess pressure during cooling, the greater the amts. of cooling gas wasted.
Patent DE-4226673-A1 (DE)
Title: Filter cleaning - uses compressed air saturated with solvent in spray to force residual permeate back through membrane pores followed by further cleaning with compressed air or water
Inventor: GRIGARCZIK GUNTHER
IPC: B01D29/66
Filed: 1992-08-12
Abstract: For the cleaning of filter, micro-filter and ultrafilter assemblies, initially the permeate runs freely out of the module through an intermediate pressure vessel. In the back rinsing process, compressed air or other gas medium is delivered by a jet through a compressed air connection directly at the permeate outlet of the module, saturated with a special fine spray of solvent or other medium. The residual permeate is forced back through the module and the sprayed solvent is forced into pores of the membrane. Through a compressed air valve at the vessel, clean compressed air forces any permeate or clear water in the vessel back to give the membrane further cleaning. USE/ADVANTAGE - Used for cleaning filters where they can be heavily clogged. The back rinsing action gives an effective cleaning operation, to increase the filtering effect, and prevent build-up around the membrane assembly.
Patent DE-4228412-A1 (DE)
Title: Fluid stop-valve with tapering plug - has passage, with inlet and outlet, into which tapered plug slides, having sealing faces in transverse outlet union
IPC: F16K25/04
Filed: 1992-08-26
Abstract: The valve (1) has a passage (3) for it in a housing (2). A plug (4) with tapering sealing faces (5) slides in the latter, and works against mating faces (8) on shutting. The passage has inlet and outlet unions (3a, 3b) at right angles and joined by an intermediate section (3c). The matching faces (8) are formed in the outlet union. The sealing and mating faces can include an angle of 5 to 15 deg. When shut, the plug can extend into the top part (10) of the housing and in which mating faces for it are also provided (8). When open, the plug can be completely outside the intermediate passage-section. USE/ADVANTAGE - Partic. for abrasive or corrosive fluids. Long life even under extreme conditions.
Patent DE-4230532-A1 (DE)
Title: Crash barrier for highways - is made from mixt. of fibres and ground material and narrows from bottom to top
Inventor: MOEBIUS WERNER DIPL ING
IPC: E01F8/02
Filed: 1992-09-12
Abstract: The embankment surfaces of the barrier-type body has a steepness which holds back any vehicle colliding with it from the highway, guides it along the barrier and possibly back onto the highway. The side surfaces of the barrier-type body are arched towards the body interior. The embankment surfaces are parabola-shaped in cross-section. The barrier-type body has an upper end surface which is arched towards the body interior and the upper side edges of it are rounded. The body is made of a homogeneous mixt. of fibres and ground material which is compressed. The fibres are partic. approximately 200 mm. long and are of plastic, partic. polyester or a polyolefin. Alternatively, the fibres are glass fibres or fibres reinforced with glass fibres. USE/ADVANTAGE - As a crash barrier in the central reservation of a highway.